<template lang="html">
    <div class="editor">
      <div ref="toolbar" class="toolbar"></div>
      <div ref="editor" class="text"></div>
    </div>
</template>

<script>
import E from 'wangeditor'
export default {
  name: 'editoritem',
  data() {
    return {
      editor: null,
      info_: null
    }
  },
  model: {
    prop: 'value',
    event: 'change'
  },
  props: {
    value: {
      type: String,
      default: ''
    },
    disable: {
      type: null,
      default: null
    },
    isClear: {
      type: Boolean,
      default: false
    }
  },
  watch: {
    isClear(val) {
      if (val) {
        this.editor.txt.clear()
        this.info_ = null
      }
    },
    value: function(value) {
      if (value !== this.editor.txt.html()) {
        this.editor.txt.html(this.value)
      }
    }
  },
  mounted() {
    this.seteditor()
    this.editor.txt.html(this.value)
  },
  methods: {
    seteditor() {
      this.editor = new E(this.$refs.toolbar, this.$refs.editor)
      this.editor.customConfig = this.editor.customConfig
        ? this.editor.customConfig
        : this.editor.config
      this.editor.customConfig.uploadImgShowBase64 = false // base 64 存储图片
      this.editor.customConfig.uploadImgHeaders = {} // 自定义 header
      this.editor.customConfig.uploadFileName = 'file' // 后端接受上传文件的参数名
      this.editor.customConfig.uploadImgMaxSize = 2 * 1024 * 1024 // 将图片大小限制为 2M
      this.editor.customConfig.uploadImgMaxLength = 10 // 限制一次最多上传 10 张图片
      this.editor.customConfig.uploadImgTimeout = 5 * 60 * 1000 // 设置超时时间
      this.editor.customConfig.customUploadImg = async (files, insertImgFn) => {
      }
      // 配置菜单
      this.editor.customConfig.menus = [
        'undo', // 撤销
        'redo', // 重复
        'head', // 标题
        'bold', // 粗体
        'fontSize', // 字号
        'fontName', // 字体
        'italic', // 斜体
        'underline', // 下划线
        'strikeThrough', // 删除线
        'foreColor', // 文字颜色
        'backColor', // 背景颜色
        'link', // 插入链接
        'list', // 列表
        'justify', // 对齐方式
        'quote', // 引用
        'emoticon', // 表情
        'image', // 插入图片
        'table', // 表格
        'code' // 插入代码
      ]
 
      this.editor.customConfig.onchange = html => {
        this.info_ = html 
        if (!this.disable) {
          this.$emit('change', this.info_) // 将内容同步到父组件中
        }
      }
      this.editor.create() // 创建富文本编辑器
      if (this.disable) {
        this.editor.disable() //只读
      } else {
        this.editor.enable()
      }
    }
  }
}
</script>

<style lang="css">
.editor {
  width: 100%;
  margin: 0 auto;
  position: relative;
  z-index: 0;
}
.toolbar {
  border: 1px solid #ccc;
  display: flex;
  flex-wrap: wrap;
}
.text {
  border: 1px solid #ccc;
  border-top: none;
  min-height: 500px;
}
</style>